Grate frame



E. B. SMITH.

GRATE FRAME.

APPLICATION FILED SEPT. 7, 1 920. v

Patented une ,1922, 5

EDWIN B. SMITH, or MARION, rnnrelnn, ASSIGNOB 'ro THE fivtamonmacnm'n'gFOUNDRY AND SUPPLY CO1VPANY,- os MARION, INDIANA, coRPoItA'rIoN.

GRATE FRAME.

Specification of Letters Patent. Patented June 6,

Application filed September 7, 1920. Serial no. 408,570; f-

To all whom it may concern Be it known that l, EDWIN B. SMITH, a citizenof the United States, X'GSlCllD at h larion, in the county of Grant andtatate of Indiana, have invented a new andusetul Grate Frame, of whichthe :Iollowing is a specification, I I

This invention relates to means for locking together the side frames andend grate bars of iurnaces utilizing rocking grates.

Various means have been devised heretofore for connecting the endgratefbars to the side "frames but they have been open to manyobjections, from a tnat-tical standpoint, many of them causingdistortion of the structure when in use, others being ditficult toinstall under so'sne coi'iditions, and

others becoming dislocated period of use. v g

It is an object of the present invention to provide an improved meansfor locking the end grates to the side frames whereby the erector isenabled after placing thetrame in position in the furnace, drop the "endbars down into their proper positions where they will be properlyengaged and securely held and locked. Y i

Vith the foregoing and other objects in view. which will appear as thedescription proceeds. the invention consists of certain :1 Her a shortnovel details of construction and combine tions of parts which will behereinafter more fully described and pointed out in the claim, it beingunderstood that various changes may be made in the construction. and errangement of the parts without departing from the spirit orsacriticingany of the ad;

vantages of the invention. I i

In the accompanying drawings the preferred formof the invention has beenshown.

In said drawings- Figure 1 is a view partly in side elevation and partlyin section showing the grate bar:

outer side of one end portion ofa side frame. a

Referring to reference,' 1 designatesthe end bar of a grate thesamebeing provided at each end with a depending lug 2. The bar has alongitudinal series of apertures 3 in the'top thereof and is providedwith the usual laterally extending teeth l, adapted to cooperate withthe teeth of the adjoining rocking bars,

the figures by characters of not shown. of the grate. For the purpose ofsupportingand'locking the end bar 1 in position, the side frames,indicated at 5 wh ch are mounted 1n the usual manner, are 1 formed withinwardly extending lugs 6- having-openings therein for the'reception ofthe l'ugs 2 on the bar 11 Hooks 7 are also formed on the-inner s des ofthe side frames and are adapted to extend upwardlyintoth'e endopenings-sin the bar 1. Thus it will" be-seenthat afterthe side frames 5have been lowered into-position in-the furnace, the v end bars 1 canbe'lowered to seat the lugs 2in'the 'lugs 6 and the hooks 7 in the openings 3 and the parts will be held securely together without danger ofbecoming accidentally displacedv and without causing dis tortion of thefurnace when in'use.

Vhat'is' claimedis:- v c In a grate the combination of sideinenn bersand a bar 'inserted'therebetween, each side memberibein rovided with aninkwardly extending hook upon the; upper por tion thereof and with aninwardly extending aperturedlug upon the lower portion thereof, said barbeing provided with a longitudinal series of apertures opening down-.wardly through the upper portion thereof,

with downwardly extending lugs at theends of the bar and. withlaterally'extending teeth, the end apertures in the baraconstitutingseats :torthe hooks, and the apertured lugs constituting seats for thedownwardly ex-;

tending lugs. v i V v In testimonyth'at I elann the foregoing as y inthe presence "of two witnesses.

own, I have hereto affixed my signature EDWIN B. SMITH. 1 I

Witnesses: I l v ERMAN, D. Onnn ly El F.,FERJREE. I I

